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Alpha Overheat Thermostat 1.015673

Alpha

Alpha Overheat Thermostat 1.015673

Overheat thermostat for Alpha CB24, CB28, CB24X, CB28X and SY24 LPG boilers, part number 1.015673.

At a glance

  • Also known as THERMOSTAT-SCREW-FIX-L115-25C, OVERHEAT-TSTAT-CB2428SY, 1250140
Manufacturer part no.
1.015673
Showing prices

£19.28

£16.07 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Alpha 1.015673 is an overheat thermostat used in Alpha CB and SY series LPG boilers. It monitors boiler temperature and acts as a safety cut-out, interrupting the burner if the appliance overheats. This is a manufacturer part for the Alpha CB24, CB28, CB24X, CB28X and SY24 LPG models.

Signs this part needs replacing

  • Boiler repeatedly locks out on overheat, particularly after a period of demand.
  • Burner cuts out before the boiler reaches its set temperature.
  • Lockout that clears only after the appliance has cooled.
  • Heating or hot water fails to run because the overheat cut-out has tripped.
  • Overheat fault indicated by the boiler's controls or fault code.

Before you order

  • Confirm your boiler model and LPG variant against the manufacturer's parts list.
  • Check the part number on the existing thermostat matches 1.015673.
  • Isolate the electrical supply and gas before removing or fitting the thermostat.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.